Study on the Mechanical Relaxations of a Zr₃₆Ti₂₄Be₄₀ Amorphous Alloy by Time–Temperature Superposition Principle

Effect of temperature and frequency of dynamic loading in the viscoelastic properties of aluminium alloy 7075‐T6

“…the storage and loss moduli vary more significantly with the frequency of the mechanical excitation at high temperatures. This phenomenon has also been observed in amorphous alloys [19]. Finally, the fact that the decrease in storage modulus at low frequencies is larger is typically explained by the reduction of the mechanical relaxation time as temperature increases [2,19].…”

“…This phenomenon has also been observed in amorphous alloys [19]. Finally, the fact that the decrease in storage modulus at low frequencies is larger is typically explained by the reduction of the mechanical relaxation time as temperature increases [2,19]. At low frequencies, the short relaxation time causes response with large phase lag, which results in a greater decrease of the storage modulus.…”

Modeling of the Effect of Temperature, Frequency, and Phase Transformations on the Viscoelastic Properties of AA 7075-T6 and AA 2024-T3 Aluminum Alloys

“…The larger decrease of the storage modulus with temperature at low frequencies rather than at high frequencies is typically explained by the Arrhenius-type behavior of the relaxation rate, which means that the mechanical relaxation time diminishes as the temperature increases. [1,48] That is, at low frequencies, the shorter relaxation times cause responses with larger phase lags, which result in a greater decrease of the storage modulus. This explains also why the inflexion and local maximum for higher frequencies are delayed in temperature with respect to lower frequencies.…”

“…The fact that the viscoelastic behavior becomes more prominent as temperature increases has already been observed in amorphous alloys. [48] In particular, the storage and loss moduli depend more significantly on the excitation frequency at higher temperatures. The results expose also the influence of microstructural transformations on the viscoelastic behavior, in agreement with previous research.…”

Evaluation of the Glass-Forming Ability of Zr–Ti–Be Ternary Alloys Using the CALPHAD-Type Approach

“…Tanner and Ray first reported on Zr-TiBe metallic glasses, 4) and determined the experimental glassforming compositional range (GFR) at cooling rates of 10 5 -10 7 K/s. 5) Although some experimental studies were carried out later, [6][7][8][9] the available information mainly concentrates on the GFR, glass transition temperature, T g , and crystallization temperature, T x . Therefore, more quantitative information on the glass-forming ability of this ternary metallic glass such as critical cooling rates for glass formation is useful for understanding its thermal stability and for further development of Be-containing Zr-based metallic glasses.…”